M4B to AMR Converter

Convert M4B to AMR online quickly and easily. Just upload your file, convert it, and download the AMR in seconds.

Limit Reached

You have reached a limit of your plan.

Download All
Convert all to
Drag and drop files here. SignUp for more features.
+

What is M4B ?

M4B is the audiobook version of M4A: AAC audio in an MPEG-4 file with chapter marks and bookmarking, used by Apple Books and many audiobook apps.

M4B format  ▶

What is AMR ?

AMR (Adaptive Multi-Rate) is an audio compression format primarily used for speech coding. It is widely utilized in mobile communication, allowing for efficient transmission of voice data while maintaining sound quality.

AMR format  ▶

How to convert M4B to AMR

  1. Upload your M4B file
    Drag and drop your M4B file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose AMR as output format
    The converter is preset to AMR, but you can select any other output format before converting.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression before converting.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.